Pen clip



FIG. 1 is a front elevational view of a pen clip showing my new design;

FIG. 2 is a right side elevational view, the left side being a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a bottom plan view thereof.

The pen depicted by means of broken lines in FIGS. 1 and 2 has been shown for illustrative purposes only and forms no part of the claimed design. 

I claim the ornamental design for a pen clip, as shown and described. 